Heating apparatus



Feb. 2, 1932. H. R. HUMPHREY ET AL 1,843,450

HEATING APPARATUS I Original Filed Jan. 21, 1929 2 Sheets-Sheet. l

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INVENTOR Nate/'1 E. Humphrey Feb. 2, 1932. v H. R. HUMPHREY ET AL ,8

HEATING APPARATUS Original Filed Jan. 21, 1929 2 Sheets-Sheet 2 g V 3.? y X) F 6 INVENT OR 7 ivaber/ E. Humphrey y Gear 04.5907 0 ay %M d ATTORNEYS Patented Feb. 2, 1932 UNITED STATES PATENT OFFICE HUBER-T R. HUMPHREY AND GEORGE A. HUMPHREY, OF KALAMAZOO, MICHIGAN, AS-

SIGNORS TO GENERAL GAS LIGHT COMPANY, OF KALAMAZOO, MICHIGAN HEATING APPARATUS Application filed January 21, 1929, Serial No. 333,795. Renewed November 21, 1931.

Our present improvements are particularly designed by us for embodiment in the type of heating apparatus illustrated and described in our application for Letters Patent filed November 3, 1928, Serial No. 314,017. These improvements are, however, readily adapted and desirable for use in other relations.

The main objects of this invention are:

First, to provide in a heating apparatus a control means whereby the supply of fuel is automatically cut off or stopped when the )lower stops.

Second, to provide an apparatus of this character which is efiicicnt and reliable.

Objects pertaining to details and economies of our invention will appear from the description to follow. The invention is defined in the claims.

A structure which embodies the -features of our invention is clearly illustrated in the accompanying drawings in which:

Fig. l is a side elevation of our improved heating apparatus, parts being broken away for convenience in illustration.

Fig. 2 is a detail plan view of the blower and valve mechanism which are mounted on the supporting bracket to constitute a single assembled unit.

Fig. 3 is an enlarged fragmentary view of parts shown in Fig. 2 showing the blower in operation and the valve control mechanism in position to open the valve.

Fig. 4 is a detail view partially in section on a line 4- 1 of Figs. and

Fig. 5 is a view partially in section on line 5-5 of Fig. 4, the valve being in closed position.

Fig. 6 is a fragmentary view mainly in section corresponding to that of Fig. 5 with the valve in open position.

In the embodiment of our invention illustrated we provide a. base member 1, a top or flue member 2 and a plurality of fines 3 opening thereto. The burner box 4 coacts with the base member 1 in providing a closed combustion chamber for the burner 5. A pilot 6 is provided for the burner.

The hood 7 is arranged at the rear of the fines 3 to direct air from the fan 8 of the blower across the flues and also into the combustion chamber through the passage 9. The air is delivered underpressure to the burner and through the radiator flues in general as described in our above mentioned application.

The fan 8 is mounted on the front end of the shaft 10 of the motor 11. This motor is mounted. on a bracket 12 which is detachahlv mounted on the hood or frame member 7 which constitutes a support for the blower and other parts mounted on the bracket. The valve casing 13 is also mounted on the bracket, it being secured thereto in the embodiment illustrated by means of the bolts 14. A supply pipe 15 is connected to the upper end of the valve casing.

The delivery pipe 16 is detachahly connected to the valve casing by the coupling 17 and suitably connected to the burner the details of the burner in this connection not being illustrated. The valve 18 is slidablv mounted on a fixed stem 19 to close againstthe gas pressure as indicated by the arrangement in Fig. 6. The spring 20 on this guide stem acts to urge the valve to open position or from its seat.

The valve is closed and held upon its seat by a governor mechanism operatively associated with the blower. This in the embodiment illustrated consists of a bell crank lever 21 which is pivoted. at 22 on the arm 23 of the bracket. one arm of the lever coacting with a tappet 24 projecting from the valve casing. The other arm of the lever is engaged by a collar 25 slidably mounted on the rear end 26 ot the motor shaft. This collar is urged torwardly by the coiled spring 27, thereby, through the lever and tappct, closing the valve and holding it to its seat and also a ting to hold the governor armsQS in their collapsed position. These arms have weights 29 on their outer ends and are pivoted at 30 to the collar. Links 31 onnect the arms to the fixed collar 32 on the shaft. the spring 27 being arranged between the collars 25 and 32.

Vith this arrangen'ient. when the centrifugal action retracts the collar 25, the spring 20 and the gas pressure open the valve.

To avoid the necessity for packing for the tappet we provide a VillXe seat 33 surrounding the tappet, the valve being provided with a facing 34 coacting with this valve seat when the valve is opened and thereby avoiding the necessity for packing which might interfere with the free movement of the tappet, It is the desire that when the valve is opened it shall be fully opened.

The pilot 6 is connected to the valve casing through the conduit 35, this connection being in advance of the control valve.

The circuit wires 36 for the motor are arranged through a conduit 37 also connected to the bracket. Our improved heating apparatus is very reliable and is automatic in its operation, the gas valve being opened or con trolled primarily through the switch indi- 'cated conventionally at 38, as the motor is controlled through this switch. The motor in its turn controls the valve as described. In the event the motor is inoperative the valve remains closed.

,We have illustrated and described our improvements in an embodiment which we have found highly satisfactory. \Ve have not attempted to illustrate various modifications and adaptations which we contemplate as it is believed this disclosure will enable those skilled in the art to embody or adapt our improvements as may be desired.

Having thus described our invention what we claim as new and desire to secure by Letters Patent is:

1. In a heating apparatus, the combination of a supporting frame, a gas burner, a radiator unit operatively associated therewith, a bracket detachably mounted on said support, a motor mounted on said bracket and provided with a shaft projecting at each end, a fan on the front end of said shaft, a valve casing mounted on said bracket, a delivery pipe from said valve casing to said burner dctachably connected to said valve casing, a valve, a spring acting to open said valve, a. valve closing tappet projecting from said valve casing, a bell crank lever pivotally mounted on said bracket, one arm of said lever being operatively associated with said tappct, a governor for said valve comprising a collar slidably mounted on said motor shaft to engage the other arm of said valve lever, arms provided with weights pivotally mount.- ed on said collar, links pivotally connected to said shaft and to said arms, and a spring on said shaft acting on said collar to collapse said arms and to urge said lever to valve closing position.

In a heating apparatus, the combination of a supporting frame, a gas burner, a radiator unit operatively associated therewith, a

bracket detachably mounted on said support, a motor mounted on said bracket and provided with a shaft projectin at each end, a fan on the front end of said shaft, a valve casing mounted on said bracket, a delivery pipe from said valve casing to said burner detachably connected to said valve casing, a valve, a spring acting to open said valve, a valve closing tappet projecting from said valve casing, a bell crank lever pivotally mounted on said bracket, one arm of said lever being operatively associated with said tappet, and a governor for said valve comprising an actuated member slidably mounted on said motor shaft to engage the other arm of said valve lever.

3. In an apparatus of the class described, the combination of a closed combustion chamber, a radiator unit operatively connected with said combustion chamber, a burner in said combustion chamber, a blower including a motor operatively associated with said radiator unit and combustion chamber, a supply valve for said burner, and a valve controlling governor operatively associated with said motor and valve and acting when at rest to close said valve, said valve being adapted to automatically open when released by said governor.

4. In an apparatus of the class described, the combination of a closed combustion chamber, a radiator unit operatively connected with said combustion chamber, a burner in said combustion chamber, a blower including a motor operatively associated with said radiator unit and combustion chamber, a supply valve for said burner, and a valve controlling governor operatively associated with said motor and valve.

5. In a heating apparatus, the combination 100 of a closed combustion chamber, a heat radiating unit connected to said combustion chamber to constitute an outlet therefor, a burner arranged within said combustion chamber, a blower operatively associated 105 with said radiating unit and with said combustion chamber, and means for controlling said valve operatively associated with said blower and acting to hold said valve in closed position when the blower is at rest.

6. In a heating apparatus, the combination of a closed combustion chamber, a heat radiating unit connected to said combustion chamber to constitute an outlet therefor, a burner arranged within said combustion 115 chamber, a blower operatively associated with said radiating unit and with said combustion chamber, and means for controlling said valve operatively associated with said blower.

7. In a heating apparatus, the combination of a combustion chamber a radiator unit operatively connected to said combustion chamber, a burner within said combustion cham ber, a blower arranged to supply air to said 125 combustion chamber and discharge air across said radiator unit, a valve for said burner, and a valve control mechanism including a governor device operatively associated with said blower.

8. In a heating apparatus, the combination of a gas burner, a radiator unit operatively associated therewith, a motor provided with a shaft, a fan on said shaft operatively associated with said radiator unit, a control valve for said burner, a spring acting to urge said valve to its open position, a valve closing lever, a governor mechanism mounted on said shaft and including a member operatively associated with said valve closing lever to close the valve when the governor is at rest, and a spring acting on said governor member to urge it to rest position, said governor member being out of engagement with said lever when the governor is actuated.

9. In a heating apparatus, the combination of a gas burner, a radiator unit opera-tively associated therewith, a blower operatively associated with said radiator unit, a control valve for said burner, a spring acting to urge said valve to its open position, a valve closing member, a governor operatively associated with said blower and including a member operatively associated with said,valve closing member to close the valve when the governor is at rest, and a spring acting on said governor member to urge said governor member to rest position, said governor member being out of engagement with said valve closing member when the governor is actuated.

10. In a heating apparatus, the combination of a gas burner, a radiator unit operatively associated therewith, a blower operatively associated with said radiator unit, a control valve for said burner, a spring acting to urge said valve to its open position, a governor operatively associated with said blower and including a spring of a tension exceeding that of the valve opening-spring, and

operating connections from said governor to said valve whereby the valve is closed when the governor is at rest, said connections being broken when the governor is actuated.

11. In a heating apparatus, the combination of a gas burner, a radiator unit operatively associated therewith, a blower operatively associated with said radiator unit, a control valve for said burner, a spring acting to urge said valve to its open position, a governor operatively associated with said blower, and operating connections from said governor to said valve whereby the valve is closed when the governor is at rest, said connections being broken when the governor is actuated.

In witness whereof we have hereunto set our hands,

HUBERT R. HUMPHREY. GEORGE A. HUMPHREY. 

